Head for vertical pumps



A. HoLLANDx-:R

'HEAD FOR VERTICAL vPUMPS Jan. 11 1927.

Filed sept. 241, 1925 2 sheets-sheet 1 Jan. 11 1927; 1,614,196

A. HOLLANDER HEAD FOR VERTICAL PUMPS Filed Sept. 2l., 1925 2 Sheets- Sheet 2 @M1-lnge l, liatenteddan. 11,

Unir-sn STATES y 1,614,196 PATE-NT oFF/ics.. y

ALADAR HOLLANDER, F BERKELEY, CALIFORNIA, ASSIGNOR, BY DIRECT kAND MESNE ASSIGNMENTS, OF ONE-HALF TO BYRON JACKSON PUMP MFG. G0., OF BERKELEY, CALIFORNIA, A CORPORATION OF CALIFORNIA, AND ONE-HALF T0 lPEIIRLESS PUMP COMPANY, OF LOS ANGELES, CALIFORNIA, A CORPORATION OF CALIFORNIA.

HEAD non VERTICAL PUMPS.

Application led September 21, 1925. Serial No. 57,532.

invention has for its object a pump head particularly adapted tov Vertical types of pumps, enabling the shaft lengths to be adjusted with a minimum amount of labor and with the greatest accuracy, and alsofenabling various methods of driving to be employed with a minimum change in the structural details of the pump head and parts.

By referring to the accompanying draw-4 ing my invention will he made clear.

F ig. 1 is a cross section through the head of a vertical centrifugal type of pump, em-

l y ploying my invention.

. Fig. 2 is a fragmentary elevation of a vertical centrifugal pump with the lower portion shown in section and to a reduced scale, and employing` my invention shown in Fig. 1.

Fig. 3 is a plan view of a locking ring and Fig. 4 a fragmentary view of a portion of the shaft adapted to receive the locking ringof Fig. 3, f

Throughout` the figures similar numerals refer to identical parts.

l pump casing is shown by the numeral 1 supported from the head frame 2, by a conventional flange 3.

The head 2 is provided with a discharge outlet 4 and an upper fiange 5 carrying the` bearing member 6 and preferably also supporting the ball-bearings 7 andS substantially as shown.

At 9 is shown the lmain driving shaft which is provided with' a locking collar 10 and an extended portion 11, having therein a keyway engaging the spline 12, forming a locking means forcing rotation with the stub-shaft13.

This stub shaft 13 is threaded at 14 engaging corresponding threads in the sleeve 15, which sleeve has a socket in its lower portion into which thecollar 10 fits.

The sleeve is also provided with a square or wrench receiving portion at 16.

The stub shaft 13 on its upper end is .provided with threads at 17 and a nut 18 and a square or wrench `receiving portion at 19.

At 20 and 21 respectively are shown wrenches applied to the square portions 16 and 19.

It will now be seen that by rotating one of these wrenches with respect to the other the threads 14 are actuated to displace axially the shaft 9 with respect to the lower guide bearing 22 and the thrust bearing at 7.

y An impeller is shown at 23 carried on the shaft 9 and this impeller is raised .or lowered with the shaft 9,'securing an adjustment with respect tothe guide lbearing at 22, by the relative rotation of the Ysleeve 15 andthe stub shaft 13. 4

The collar 10 is made in two parts as best shown'at Fig. 3, and when these two parts are together they clamp about the shaft recess 25 as shown in Fig. 1 1 i The collar is embraced within a socket in the sleeve 15 and is then locked against disengagement by the periphery of the socket, and relative rotation between 11 and 13 is prevented by the spline 12.

At 26 is shown a-driving pulley having the hub 27 which extends downward and carries the radial bearing 8 and the. step bearing 7, these bearings forming 'a complete support for the entire rotating element.

They are made readily accessible for purposes of repair `or replaement'by the arrangement of parts here shown, or the pulley-2G may be replaced by an electric motor or any -form of .coupling or driving device, it merely being necessary that said devices are provided with a hub substantiallyT similar to that shown at 27 driving key 28.-

The operation isas followsl Assuming it is desired to clean, repair or replace the bearings, 7 and 8, wrenches 20, 21' are brought into play as shown in Fig. 1, and while holding the shaft 9 rigid the stub shaft 13 is rotated, to unscrew the threads 14 of the sleeve 15. l f

This will result in allowing the shaft 9 to descend until the hub of the impeller 23 rests upon the bearing 22 A further unscrewing of the sleeve 15 results in the disconnecting of the stub 13 if desired, or the removal of the nut, 18 en-v ables the hub 27 to be removed, thus providing access to the bearings for any purpose desired. v

I claim:

1. In a'head for vertical shaft pumps, a bearing and a stub shaft adapted to rotate in said bearing, said stub shaft havinga cylindrical hole and keyway in the lower end, a main shaft slidable axially in said and providedwith a 4 hole but keyed against rotation, a connecting sleeve engaging both of said shafts and locking them in axial relation.

2. In a head for vertical shaft pumps, a bearing and a stub shaft adapted to rotate in said bearing, said stub shaft having a cylindrical hole and keyvway in the lower end, a main shaft slidable axially in said hole but keyedagainst rotaiiom a connecting sleeve engaging both-of said shafts and locking them in axial relation., screwthreads between one of said shafts 'and said sleeve, the sleeve being free to rotate Qn but ronstrained against axial movement on the oth'- er shaft whereby the'rotation of the sleeve; with respect to theeshafts forces the axial movement between the shafts.

3. In a head for vertical shaft pumps, a bearing. and a stub shaft adapted to rotate in said bearing, said stub shaft having a lcylindrical hole and kevway in the lower end, a main shaftslidable axially in said hole but keyed against rotation, a connecting sleeve engaging both of said shafts and locking them in axial relation, screw threads between one of said shafts and said sleeve,

the sleeve being free to rotate on but con` 4. In a head for vertical shaft pumps, a bearing, a driving shaft adapted to rotate in said bearing, a driven shaft axially aligned and teleseopically engaged with said driving shaft, key means between the said' shafts preventing their relative rotation while allowing their free axial relative movement, a sleeve rotatably engagedY with one shaft and in thread engagement', with the other whereby the sleeve rotation forces lthe relative axial movement of the shafts.

5. Mechanism as set forth in claim 4 wherein there are wrench engaging parts on the sleeve. and on one of the shafts.

(i. ln a vertical shaft pump, a head having a main step bearing ronstrurtml and adapted to support the shafts and rotating parts, said bearing sealed above a discharge outlet, a lower bearing adjacent an impeller, an impeller and a shaft carrying said impeller and engaging said lower bearing, a driving shaft supported in said main vhear,- ing and in axial alignment with said driven shaft, said shafts in telescopic and key engagement whereby they may be relatively adjusted axially but are eonstrained to rotate together and a sleeve in thread engagement with one of the shafts and rotatable on the other shaft. whereby the rotation of the. sleeve with respect to the shafts forces axial displacement of one of the shafts with respect to the other shaft.A

7. Vertical shaft pump mechanism asset forth in claim 6 wherein the shaft lengths are proportioned and the bearings are positioned for the main step bearing to support the shafts and the rotating parts when the shafts 'are axially drawn together and the sleeve is adjusted for normal operation, and wherein the shafts and the rotatable parts are lowered to rest upon the lower bearing When'the sleeve is adjusted to lower the driven shafts.

ALADAR HOLLAN DER. 

